BlackSpout is a lightweight standalone Spout Sender app for Windows. It lets you capture input from any Blackmagic device and transfer it in real-time to any application with Spout Receiver capability (Magic or otherwise). For maximum efficiency, it uses the GPU as much as possible.

For now, BlackSpout has only a preview window (no menus though), but it does support command-line parameters, so you can use it with batch files to automate your setup quite easily. I may add a full GUI in the future.